1 | // RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -verify %s |
2 | // REQUIRES: LP64 |
3 | |
4 | void clang_analyzer_eval(bool); |
5 | |
6 | int f1(char *dst) { |
7 | char *p = dst + 4; |
8 | char *q = dst + 3; |
9 | return !(q >= p); |
10 | } |
11 | |
12 | long f2(char *c) { |
13 | return long(c) & 1; |
14 | } |
15 | |
16 | bool f3() { |
17 | return !false; |
18 | } |
19 | |
20 | void *f4(int* w) { |
21 | return reinterpret_cast<void*&>(w); |
22 | } |
23 | |
24 | namespace { |
25 | |
26 | struct A { }; |
27 | struct B { |
28 | operator A() { return A(); } |
29 | }; |
30 | |
31 | A f(char *dst) { |
32 | B b; |
33 | return b; |
34 | } |
35 | |
36 | } |
37 | |
38 | namespace { |
39 | |
40 | struct S { |
41 | void *p; |
42 | }; |
43 | |
44 | void *f(S* w) { |
45 | return &reinterpret_cast<void*&>(*w); |
46 | } |
47 | |
48 | } |
49 | |
50 | namespace { |
51 | |
52 | struct C { |
53 | void *p; |
54 | static void f(); |
55 | }; |
56 | |
57 | void C::f() { } |
58 | |
59 | } |
60 | |
61 | |
62 | void vla(int n) { |
63 | int nums[n]; |
64 | nums[0] = 1; |
65 | clang_analyzer_eval(nums[0] == 1); // expected-warning{{TRUE}} |
66 | |
67 | // This used to fail with MallocChecker on, and /only/ in C++ mode. |
68 | // This struct is POD, though, so it should be fine to put it in a VLA. |
69 | struct { int x; } structs[n]; |
70 | structs[0].x = 1; |
71 | clang_analyzer_eval(structs[0].x == 1); // expected-warning{{TRUE}} |
72 | } |
73 | |
74 | void useIntArray(int []); |
75 | void testIntArrayLiteral() { |
76 | useIntArray((int []){ 1, 2, 3 }); |
77 | } |
78 | |
79 | |